题干

人类对图像的分辨能力约为26灰度等级,而图像量化一般采用28灰度等级,超出人类对图像的分辨能力,这种冗余属于(   )

A:结构冗余

B:视觉冗余

C:时间冗余

D:空间冗余

上一题 下一题 0.0难度 选择题 更新时间:2017-05-02 11:34:15

答案(点此获取答案解析)

B

同类题2

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

        My daughter Chloe is starting out in college in the fall. With her newfound independence will come the newfound responsibilities of dealing with money.____Now I have a few lessons I'd like to share with Chloe, and with anyone else starting out in college.

____OK,this is almost the only lesson you need. The biggest reason you get into money problems is that you spend money you don't really have. Then you end up in the hole, and it's hard to get out of the hole. You work too many hours to keep up with your spending. And you end up with a life that's about nothing but trying to pay for all the spending on something you don't really need.____

        Make a very simple budget. It's a terrible thing for people who've never done a budget, but it will become very simple and easy if you know how to do it.____If the bills add up to more than theincome, remove some bills. Pay bills right away. If you have the money, pay thebill as soon as it comes in. You can usually do this online, but if not, it's just a matter of writing a check, putting it in an envelope, and writing out an address—two minutes.____ If you let the bill­ paying get pushed back, it becomes a terrible thing.

      That's all you need to know. If you save when you're in college, avoid debt, and paybills on time, you're golden.

A.Why not enjoy your life in college?

B.Spend less than you earn.

C.So spend less, work less, worry less, be happier.

D.Like many young people, she hates thinking about money.

E.First, list your income, and then list your bills.

F.Find ways to get things done you need to get done.

G.Do this two­minute action at once, so you don't have toworry about it later.

同类题4

Bobby was sitting out in his back yard in the snow. There were a few holes in his shoes. He thought hard, but he could not come up with an idea for his mother's Christmas gift.
Ever since his father had died three years ago, his mother worked nights at the hospital, but the small money she made could hardly be enough for their needs.
Although the family lacked in money and material things, they got more love in the family. The children ran the family when their mother was absent. All three of Bobby's sisters had already made beautiful gifts for their mother.
It was Christmas Eve already, and he had nothing. Bobby started to walk down to the street. He walked from shop to shop. Everything seemed so beautiful and so far away. It was getting dark. Suddenly he found a shiny dime (一角硬币) on the ground. Never has anyone felt so wealthy as Bobby did at the moment. It was enough to buy a rose with one dime.
He went inside a flower shop. When the owner asked if he could help him, Bobby took out the dime and asked if he could buy one flower. The shop owner looked at Bobby, then said, "You just wait here and I’ll see what I can do for you."
The shop owner returned holding a dozen of red roses in his hand. Bobby's heart sank (下沉) as the owner put them gently into a long white box. "That will be a dime, young man," said the shop owner, reaching out his hand for the dime. Slowly, Bobby moved his hand to give the man his dime.
Then the shopkeeper's wife appeared. "Where are the red roses?"
The shop owner said, "A strange thing happened to me this morning. I thought I heard a voice telling me to leave a dozen of my best roses for a special gift. When I saw that little boy tonight, I knew who that voice was."